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Finding the Fourth Proportional to 492,994.79, 680,332.85 and 266,640.29

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Solution

The fourth proportional to 492,994.79, 680,332.85 and 266,640.29 is: 367,963.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,994.79 : 680,332.85 = 266,640.29 : x
  2. Step 2: Convert to fraction form
    492,994.79/680,332.85 = 266,640.29/x
  3. Step 3: Cross multiply
    492,994.79x = 680,332.85 × 266,640.29
  4. Step 4: Simplify right side
    492,994.79x = 181,404,145,685.46
  5. Step 5: Solve for x
    x = 181,404,145,685.46/492,994.79
  6. Step 6: Final answer
    x = 367,963.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.